Water and air mixing device



June 6, 1950 J. J. GOODRIE WATER AND AIR MIXING DEVICE Filed Nov. 13,1947 JOSEPH J. G omaxa mum? BY AT ORNEY the provision of a fluid mixingdevice, in

- trated in the-drawin s and Patented June 6, 1950 WATER AND AIR MIXINGDEVICE Joseph J. Goodrie, Chicago, 111.,

Wrightway Engineering Co., Chicago,

poration of Illinois assignor to I ll., a cor- Application' November 13,1947, Serial No. 785,558

5 Claims. 1

, tamination of the entire water system.

of the invention is which aeration of water can be accomplished when thewater is being ejected from a faucet or when flowing through a pipe.

A still further and other important object of this invention is toprovide a fixture, which will produce aerated water and at the same timein- Another important object clude a non-splashing screen, which isparticularly desirable in connection with sink faucets.

Another object of the invention is the production of a combinationvacuum breakerand aeratof this invention is 5-5 of Figure 2, looking inthe direction indicated by the arrows.

Figure 6 is likewise a sectional view taken on the line 6-6 of Figure 2,looking in the direction indicated.

Figure 7 is a detail view of the removable two piece plug whichcomprises one of the important features of the invention and which canbe reading apparatus for water pipes or the like, which can be readilychanged from a high pressure to a low pressure system, in a minimum oftime and with a very slight change in the construction.

Other and further important objects of the invention will be apparentfrom the disclosures in the accompanying drawings and followingspecification.

The inventio in a preferred form, is illusdescribed.

In the drawings:

hereinafter more fully.

Figure 1 is a sectional view of the improved combination vacuum breakingand mixing device of this invention, showing the same as applied to anordinary water faucet or fixture such as .employed in kitchen sinks orin similar environments.

Figure 2 is a view similar to Figure 1, but with a non-splash screenincluded in the apparatus.

Figure 3 is a, sectional view showing the device employed in a length ofpipe and particularly in connection with an added element which willmake it adaptable for use as a vacuum breaker to be used in associationwith a flush valve for toilets.

Figure 4' is likewise a sectional view, illustrating the device of thisinvention employed as a shower head, whereby aerated water can befurnished under considerable pressure and with or without a non-splashscreen.

Fi ure 5 is a sectional view taken on the line ily changed toaccommodate both high and low pressure systems.

Figure 8 is a view similar to Figure 7 a modified form of the removableplug.

As shown in the drawings:

The reference numeral I 0 indicates generally the end of a water supplypipe or faucet such as are employed in practicalLv all cases where wateris delivered. The particular pipe is screwthreaded as shown in I! toreceive the device of this invention.

The structure of the invention comprises essentially a length of pipe ortubing I which can be made of various sizes to meet different needs, andwhich is internally screw-threaded at its upper end to render the samereadily applicable to the externally screw-threaded end l2 of a pipe illor similar fitting.

This internally screw-threaded end is of slightly greater diameter thanthe internal diameter of the remainder of the tube, thereby providing a.shoulder l6, upon which is loosely fitted a perforated disk IS. Theperforations in this disk are illustrated at 20. A sealing gasket isprovided as shown at H.

The disk I8 is provided with an integral downwardly extending annularflange 22, the lower edge of which extends below a. series of slots oropenings 24, which are cut into the periphery of the pipe or tube l4 andwhich are defined by integral connecting webs 26, whereby the length ofthe pipe I4 is a unitary structure. These webs are best shown in Figure6 and the slots defined by these webs are for the purpose of admittingair into the interior of the pipe l4. When water is flowing through thepipes Ill and H and through the perforations 2c in the disk IS, anaspirating efiect is produced, whereby air is drawn in through the slots24 and mixed with the water.

This aspirating by a tapered plug conical form as illustrated, and whichis provided with an integral screw-threaded plug at its upper-end asshown in 30. whereby it can be removably mounted in an internallyscrewthreaded opening in the disk l0.

showing I 28, which is preferably of The plug is centrally andlongitudinally perforated as illustrated at 32, thereby providing forpassage of additional water therethrough when it is in use.

This central passageway 32 terminates in an enlarged internallyscrew-threaded cavity 34, which is adapted for the reception of anintegral lug on an auxiliary plug 36 or II.

The addition of this plug a makes the device workable with a much higherback pressure, while at the same time eliminating any possibility ofaccidental or objectionable spraying of excess water out throu h theports 24.

It will be noted that this removable plug is shown cylindrical at 36 andfrusto-conical-at 38, but either form will work satisfactorily with anyreasonably high back pressure.

In Figure 2 the device is shown as applied to a length of pipe II andwith an anti-splash screen 42 fltted on the end. In this embodiment, thesingle plug 2| is employed and such construction applies moreparticularly to a pipe through which water is flowing at a fairly lowpressure.

In Figure 3, the device is shown as used in the pipe 44 and connects thesame with a further pipe 46, the apparatus being inserted into a waterline which is used in connection with an ordinary. flush valve for atoilet bowl. Most of these are operated with a fairly high backpressure, so the additional plug 38 is employed. In this embodiment, thedevice is used mainl as a vacuum breaker, so that water from the toiletbowl will not be inadvertently or accidentally pulled back into the mainwater supply line by siphoning, as quite often happens, especially inbuildings of more than three stories, where the water pressure is shutoil. or lowered for some reason or another. Obviously, if there were novacuum breakers and the water pressure in such a building dopped below acertain point, water in the toilet bowls on the higher floors wouldimmediately be siphoned back into the main water supply line withsubsequent contamination of drinking water, onc the pressure is againrestored.

In Figure 4, the device is shown as applied to pipe 48, which isemployed as part of a shower head, and in this instance, the main objectis to aerate the water flowing through the pipe by aspirating air inthrough the openings 24 and the addition of the plugs 28 and 38 assuresa thorough aeration of the water while the screen 42 can be used or not,as desired. The screen does provide an anti-splash feature.

It will be seen that herein is provided an improvement over my priorpatent, in that the screen between the inner and outer casing has beeneliminated and the outer casing has been tapered, so that the waterflowing through the plurality of openings in the upper part of thecasing is discharged through the nozzle, flared against the outer casingand thoroughly mixed with air before being discharged. The eliminationof an internal screen removes any possibility of stoppage or plugging.

When connected to an ordinary water faucet, as illustrated in Figure 1,and with the central plug 2| removed, the water is discharged throughall passages and furnishes a perfect aerated mixture. A non-splashscreen can be used if desired.

When the central plug 28 is in position, the device can be used onshowers, submerged fixtures or any fixtures which include a backpressure and aerated water will result from the flow therethrough, whileat the same time the device will successfully operate with a higher backpressure.

In use with toilet bowls, as a siphon breaker, the single plug 28 can beemployed for a low pressure system and an additional plug 36 or ll canbe readily applied for use with a high pressure system In thisembodiment, and on account of the ready flow of considerable air, anordinary toilet can be flushed with about one half of the amount ofwater ordinarily considered necessary. The

use of the invention in. connection with a shower,

head will be obvious in that a satisfactory flow of aerated waterimmediately results and the anti-splash screen can be employed or not,ac-

, cording to the particular desires of the user.

I am aware that man changes may be made and numerous details ofconstruction varied throughout a wide range without departing from theprinciples of this invention, and I therefore do not propose limitingthe patent granted hereon otherwise than as necessitated by the priorart. a

I claim as my invention:

1. An aerating device for faucets and the like comprising a casinghaving lateral air inlet ports and provided with a water inletconnection, a disc adjacent the ports having circularly disposedopenings transversely of the connection for discharging flne paralleljets of water, a skirt within the casing spaced from the wall thereofadjacent the ports, an elongated body beneath the disc circular in crosssection having a portion upwardly tapered on which the jets impinge andmeans at the outer end of the casing for uniting the air and watermixture into a coherent stream.

2. Adevice as described in claim 1, wherein said means includes arestriction of the internal diameterof the outerendofthecasingandascrecnat such reduced end.

3. A device as described in claim 2, wherein the restriction of the endof the casing is below the end of the elongated body and provides amixing amber for the air and water.

4. A device as described in claim 1, wherein the skirt is directlyconnected to the disk.

5. A device as described in claim 4, wherein the skirt depends from thedisk.

' JOSEPH J. GOODRIE.

REFERENCES CITED The foliowing referencesare of record in the file ofthis patent:

UNITED STATES PATENTS

